AutoCAD .NET :: Cannot Set MdiActiveDocument

I cannot seem to set the MdiActiveDocument synchronously.

I have code inside a <CommandMethod> that creates a drawing and then writes any error information to the command line.  Since this is started in one document, if  a fatal error occurs and the drawing does not get created, that message goes to the original document's command line.

In the case where a drawing gets created with errors (say partial success), I would like the errors to appear in the new drawing (new active document's) command line.

The behavior when setting Core.Application.DocumentManager.MdiActiveDocument is peculiar.  The application can hang for a long time if you do not click anything.  If you click the document (from the taskbar or clicking on the window), it breaks out of the hang and continues to execute, but the active document is not changed.  The MdiActiveDocument still points to the original document.  You can also see that it does not change because doc.IsActive = False.  This state could be because when you clicked, you really did make the original document active (again? still?).  To break the hang, I think the click has to be on the original document.

On an example like [URL] ... there is no action taken after MdiActiveDocument is set, so I assume that it is actually set when the command is completed, not synchronously.  I am not absolutely certain of this, though.

 <CommandMethod("AUTODRAWPN")> _
 Public Sub DrawPartNumber()
 Dim ed As Editor = Core.Application.DocumentManager.MdiActiveDocument.Editor
If IsNothing(drwr) Then

[Code] ....... 

Is there a way to set the MDIActiveDocument?  Should it be hanging like this?  Should I be looking at an altogether different way to handle this?

Trying to use doc.Editor without setting the active causes a eNotApplicable error, so that is not a way out.

I am using AutoCAD 2013.  The following link implies that this could be a 2013 specific problem, but I do not know that for sure. [URL] .....